Stereoscopic exhibiting machine



July 23, 1929. P. c. SMITH 1,722,114

STEREQSCOPIC EXHIZBITING MACHINE Filed Aug. 29, 1927 2 Sheets-Sheet l VMF'J 17 59 Patented July 23, 1929.

ears si rra.

PERCY C. SMITH, OF CHICAGO, ILLINOIS, ASSIGNOR TO JOHN F. MEYER, OFCHICAGO,

ILLINOIS.

STEREOSOOPIC EXHIBITING MACHINE.

Application filed August 29, 1927. Serial No.'216,014.

This invention relates to stereoscopic exhibiting machines andparticularly to automatic operating mechanism therefor; and to coinsafety mechanism for controlling the operating mechanism.

The objects of the invention are to provide a device for exhibitingmachines which will rotate a card holding reel adapted, in thisinstance, to carry five difierent series o1 photographic cards of thestereoscopic type; which will automatically operate the card holdingreel by means of a spring motor automatically controlled by a coin; andwhich will stop the motor after one-fifth of a revolution of the reeland show one series of pictures during that part revolution.

Another object is to provide novel and improved means for automaticallystarting the reel in motion upon the insertion of a coin, and which willautomatically stop after one series of picture cards has been shown.

And a further object is to provide'improved safety means for controllingthe operation of the machine so that only one series of cards can beshown for the one coin, and which will prevent interruption of thecontrolling mechanism during the operation of the reel.

In the accompanying drawings which is a selected embodiment of: theinvention the views are as follows:

Fig. 1 is a vertical sectional view showing the operating mechanism andthe means for controlling the operating mechanism.

Fig. 2 is a transverse sectional view of the parts shown in Fig. 1.

Fig. 3 is a detail top plan View of my machine with the cover removed.

Fig. 4 is a detail perspective View showing the controlling mechanismtripping position.

5 is a similar view showing the mechanism after it has been tripped. I

Fig. 6 is a similar view showing the safety mechanism upon its returnmovement. 7

Referring to the drawings 1 designates the casing of the machinesupporting the drive shaft 2 which is driven by the spring 3 through thechain of gears 4c.

A flat vertical operating rod 5 is loosely connected to the plate 6arranged within the casing and has a slot 7 through which the screw 8extends. A bracket 9 connected to the plate forms a guide for the rod 5which is free to move vertically through a slot 10 (Fig. 3) in the topof the casing. The vertical movement of this rod is restricted by thesizeof the slot 7 but is free to move laterally a slight distance and isheld against the in nerside of the bracket 9 by a light tension spring11.

An angular stop lever 12 pivoted to the plate 6 at 13 is free to engagethe uppermost of a plurality of notches 14 in the circular disk 15 fixedto the shaft 2. The end 16 of the stop lever 12 engages the governor 17when the stop lever engages the uppermost notch 14. By providing aplurality of notches 14 in the disc 15 as shown I am able to stop themachine five times during each revolution of the wheel which enables meto show five diilerent series of pictures. A pin.

18 projecting from the rod 5 is adapted to engage with the stop lever 12so that when" the rod 5 ismoved downward the pin 18 will bear againstthe upper edge of the stop lever and cause that lever to recede from thenotch 1 1 and at the same time cause the end 16 of the stop lever toraise upwardly and allow free movement of the governor 17.

A horizontal return rod 19 pivoted to the plate 6 has its outer end 20,Fig. 2, arranged near the wheel 15 and is adapted to be engagedsuccessively by the pins 21 projecting outwardly from the disk 15.

This rod is bent outwardly at 22 so that during the rotationof the disk15 the pins 21 will be normally free from the end 20 of the rod 19, aswill be later apparent. The end 23 of the rod is bent outwardly and isfree 'to contact with a bracket 2 1 on the lower endot the rod 5. Thepurpose of the rod 19 is to return the rod 5 upwardly to normal positionafter it has been lowered in starting. 'When the machine is in motionand the disk 15 is rotating the pins 21 will contact with the end 20 ofthe rod 19 and push it downward thus raising the end 23 thereof andcausing the'rod 5 to rise back to normal or starting position. The disk15 will continue to rotate even after the lever 5 is raised and untilthe lever 12 engages the uppermost one of the notches 14:. After the rod5 is returned to normal and the dlSk'l5 is still rotating, the pins 21will be free of the rod 19 and will ride under the bent portion 22.

A spring clip 25 is fastened to the rod 5 and abuts against a pin 26 onthe plate 6. This pin prevents the rod 5 from falling downward of itsown accord and locks the rod 5 in its normal or raised position.

A spring finger 27 is fastened to the end of an actuator, or coin slide28 which is preferably the slide shown and described in Patent No.1,592,285, July 18, 1926, owned by my assignee. This finger engages theupper end of the rod 5, Fig. 4, when a com 1S inserted in the slide tostart the machine and a spring arm 29 fastened to the top of the casingcauses the finger 27 to pass under it on the inward movement of thefinger to start the machinehut rides over the arm 29 upon the outward orreturn movement of the finger.

The operation of the device is as follows: When a coin is inserted inthe coin slide 28 and the slide is pushed inwardly it carries the springfinger 27 with. it. The finger 27 will ride under the arm 29 and pushthe rod 5 to the left, Figs. 1 and 3, until the spring clip 25 on therod 5 is moved off the pin 26 when the spring 11 will pull the rod 5downward causing the pin 18 to press down on the left end of the lever12, Fig. 1, and raise this lever out of the top notch 14 and also toraise the end 16 away from the governor 17 thus allowing the machine tooperate. During the downward. movement of the rod 5 the bracket 24 willpress against the end 23. of the rod 19 to raise the end 20 of the rod19 into position to be engaged by one of the pins 21. As the diskrotates the pins 21 cause the end of the rod 19 to be lowered therebyraising the end 23 to move the rod 5 upwardly until the spring clip 25is again seated on the pin 26. The disk 15 will continue to rotate untilthe lever 12 engages the uppermost notch 14 to stop further rotationthereof. Simultaneously with the engagement of the lever 12 with the topnotch 14 the end 16 of the lever 12 will contact with the governor 17providing an additional or double stop. The spring clip 25 hassufiicient elasticity or springiness so that when the rod 5 raises, theclip will give and allow it to pass over the pin 26 and again be seatedon the pin 26.

The finger 27 passes over the arm 29 during the return or outwardmovement of the coin slide 28 as designated by the arrow in Fig. 6. Thisarrangement keeps the finger from hindering the upward movement of therod 5 in any way. It also. provides means whereby it is impossible tohave the machine operate again without inserting another coin, as theclip can in no way again move the rod. 5 until the slide 28 is pulledback and another coin inserted. However the finger 27 has sufiicientelasticity, that shculdthe operator fail to withdraw the coin slide 28after pushing it inwardly, the rod may still rise by deflecting thespring finger 27 to be raised or sprung away from the upper end of therod 5. The coin slide forms no part of my present invention but ismentioned for the sake of clarifying the operation of the parts. Asecond governor 30 may 'belixed to one of the gear shafts to assuresteadiness of operation and by bending or crimping the blades thereofthe speed of the axle 2 may be increased or decreased as desired.

The present machine embodying my invention is particularly adapted tooperate a reel such as is disclosed and claimed in my companionapplication, Ser. No. 216,013, filed concurrently herewith. I makeprovision for carrying the reel by arranging a socket 31 on the disk 15for the accommodation of the axle of the reel, although the machine isadapted to accommodate any other reel of a similar construction orcharacter. I

Changes may be made in the form, construction andv arrangement of theparts without departing from the spirit of the invention or sacrificingany of its advantages and I hereby reserve the right to make all suchchanges as fairly fall within the scope of the following claims:

I claim:

1. An automatic stereoscopic exhibiting machine comprising a casing, ashaft arranged in said casing, a circular disk having peripheral notchesfixed to said shaft, means to rotate said shaft and an angular .leveradapted to engage said notches successively to stop the rotation of saidshaft, means for disengaging the lever from a notch, and meanscontrolled by the disc for restoring the lever for engagement with thenext succeeding notch.

2. An automatic stereoscopic exhibiting machine comprising a casing, ashaft arranged in said casing, a'cir'cular disk having peripheralnotches fixed to said shaft, means to rotate said shaft, means arrangedon said disk to accommodate a reel, and an angular lever adapted toengage said notches successively to stop the rotation of said shaft,means for disengaging the lever from a notch, and means controlled bythe disc for restoring the lever for engagement with the next succeedingnotch.

8. An automatic stereoscopic exhibiting machine comprising a casing, ashaft arranged m said cas ng, a circular disk having peripheral notchesfixed to StlCl shaft,

means to rotate said shaft, means arranged on said disk to accommodate areel, an angular lever adapted to engage said notches successively tostop the rotation of said shaft, and a rod for operating said lever toraise said lever from one of the notches.

4. An automatic stereoscopic exhibiting machine comprising a casing, ashaft arranged in said casing, a circular disk having peripheral notchesfixed to said shaft, means to rotate said shaft, means arranged on saiddisk to accommodate a reel, an angular lever adapted to engage saidnotches successively to stop the rotation of said shaft, a rod foroperating said lever to raise said lever from one of the notches, pinson said disk, a horizontal rod cooperating with said first named rod andadapted to be successively engaged by said pins to raise said firstnamed rod to starting position.

r'ln automatic stereoscopic exhibiting machine comprising a casing, ashaft ar ranged in said casing, a circular disk having peripheralnotches fixed to said shaft, means to rotate said shalt, means arrangedon said disk to accommodate a reel, an stop lever adapted to engage saidnotches successively to stop the rotation of said shaft, a rod foroperating said stop lever to raise said lever from said notches, pins onsaid disk, a return rod cooperating with said first named rod andadapted to be successively engagedby said pins to return said firstnamed rod to starting position, means arranged on said casing to allowlateral movement of said operating rod, and a spring for causing saidoperating rod to be pulled downwardly to operate said lever.

6. In combination, a rotatable disk having peripheral notches, a stoplever adapted to engage said notches successively during rota tion ofsaid disk to stop the same, pins on said disk, an operating rod foroperating said stop lever, and a return rod operated by said 0 cratinrod and en a in said a pins wnereby said return rod Wlll raise saidoperating rod back to starting position during rotation of said disk.

7. In combination, a rotatable disk having peripheral notches, a stoplever adapted to engage said notches successively during rotation ofsaid disk to stop the same, pins on said disk, an operating rod foroperating said stop lever, a return rod operated by said operating rodand engaging said pins whereby said return rod will raise said operatingrod back to starting position during rotation of said disk, a springclip on said operating rod, and a pin for engaging the end of said clipto hold the operating rod in starting or normal position.

8. In combination a casing, a rotatable disk having peripheral notches,a stop lever for engaging said notches successively to stop said disk,an operating rod for operating said stop lever, a return rod forreturning said operating rod to starting position, a pin on said casing,a spring clip on said operating rod for engaging said pin to hold theoperating rod in starting position, an actuator, and means connected tosaid actuator for operating said operating rod.

9. In combination a casing, a rotatable disk having peripheral notches,a stop lever.

for engaging said notches successively to stop said disk, an operatingrod for operating said stop lever, a return rod for returningsaidoperating rod to starting position, a pin on said casing, a spring clipon said operating rod for engaging said pin to hold the operating rod instarting position, a slide, and a spring finger on said slide foroperating said operating rod when said slide is moved inwardly.

10. In combination a casing, a rotatable disk having peripheral notches,a stop lever for engaging said notches successively to stop said disk,an operating rod for operating said stop lever, a return rodforreturning said operating rod to starting position, a pin on said casing,a spring clip on said operating rod for engaging said pin to hold theoperating rod in starting position, a slide, a spring fin er on saidslide for operating said operating red when said slide is movedinwardly, and a spring arm arranged on said casing for guiding saidfinger and to raise said finger upon return movement oi said slidewhereby said finger is prevented from operating said vertical rod unlessthe slide is again operated.

11. In combination with a rotatable disk having means for engaging saiddisk to stop the same, of an operating rod for controlling the operationof said means, a pin, a spring clip .on said rod and adapted to engagesaid pin to hold the rod in position. means for allowing lateralmovement of said rod for causing the clip to be released from thepin,and spring means'for causing said rod to be pulled downwardly tooperate said first named means,

12. In combination with a rotatable disk having means for engaging saiddisk to stop the same, of an operating rod for controlling the operationof said means, a pin, a spring clip on said rod and adapted to engagesaid pin to hold the rod in position, an actuator, a spring finger onsaid actuator and adapted to move said rod laterally to cause said clipto be released from said pin, spring means for pulling'the roddownwardly to operate said first named means, and a spring arm forcausing the finger to be moved away from said rod during operation ofthe ma chine, whereby said rod cannot again be operated without repeatoperation or" the actuator.

PERCY o. sMrrH;

